AA／AMPS共聚物水凝胶的吸液性能  

Study on absorbency of poly(AA-co-AMPS)hydrogels

作　　者：廖列文[1] 刘正堂[1] 黎新明[2] 崔英德[2] 

机构地区：[1]西北工业大学材料科学与工程学院,陕西西安710072 [2]仲恺农业技术学院绿色化工研究所,广东广州510225

出　　处：《化工进展》2008年第5期729-732,共4页Chemical Industry and Engineering Progress

基　　金：国家自然科学基金资助项目(20176007,20376087)

摘　　要：研究了采用溶液聚合法制备的AA/AMPS共聚物Poly(AA-co-AMPS)水凝胶的吸液性能,结果表明:合成的凝胶材料在0.9%生理盐水中的吸液能力达到125 g/g以上;在溶液的pH值5～9时,水凝胶的吸水倍率与最大吸液率的比值(Q/Qmax)最大;水凝胶对NaBr溶液的吸收能力要好于对NaCl溶液的吸收能力;水凝胶对乙醇、氨水溶液的吸收能力随溶液浓度的增高而增大,对尿素水溶液的吸收能力随溶液浓度的增高而减小。Poly （AA-co-AMPS） hydrogels were synthesized by the solution polymerization method, and the absorbency of the hydrogels was studied as well. The results showed that the absorbency of the hydrogels was more than 125 g/g in 0.9% NaCl solution, and the value of Q/Qmax was nearly 100 when the pH value was 5-9. The absorbency did not decrease as much as the change of pH value. The absorbency in NaBr solution was higher than in NaCl solution. The absorbency of the hydrogels increased with increasing concentration in ethanol solution or ammonia water, while decreased with increasing concentration in urea solution.

关 键 词：耐盐性 水凝胶 AA AMPS 吸液能力 

分 类 号：O636.1[理学—高分子化学]